131013431122042 has 64 divisors (see below), whose sum is σ = 230231163939840. Its totient is φ = 54741339878400.

The previous prime is 131013431122037. The next prime is 131013431122109. The reversal of 131013431122042 is 240221134310131.

It is a self number, because there is not a number n which added to its sum of digits gives 131013431122042.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5974426134 + ... + 5974448062.

It is an arithmetic number, because the mean of its divisors is an integer number (3597361936560).

Almost surely, 2^{131013431122042} is an apocalyptic number.

131013431122042 is a deficient number, since it is larger than the sum of its proper divisors (99217732817798).

131013431122042 is a wasteful number, since it uses less digits than its factorization.

131013431122042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28687.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 131013431122042 its reverse (240221134310131), we get a palindrome (371234565432173).

The spelling of 131013431122042 in words is "one hundred thirty-one trillion, thirteen billion, four hundred thirty-one million, one hundred twenty-two thousand, forty-two".